San Marcos is an island

Island

An island or isle is any piece of sub-continental land that is surrounded by water. Very small islands such as emergent land features on atolls can be called islets, cays or keys. An island in a river or lake may be called an eyot , or holm...

 located in the northern portion of Baja California Sur

Baja California Sur

Baja California Sur , is one of the 31 states which, with the Federal District, comprise the 32 Federal Entities of Mexico. Before becoming a state on October 8, 1974, the area was known as the South Territory of Baja California. It has an area of , or 3.57% of the land mass of Mexico and comprises...

, México

Mexico

The United Mexican States , commonly known as Mexico , is a federal constitutional republic in North America. It is bordered on the north by the United States; on the south and west by the Pacific Ocean; on the southeast by Guatemala, Belize, and the Caribbean Sea; and on the east by the Gulf of...

. It faces the town

Town

A town is a human settlement larger than a village but smaller than a city. The size a settlement must be in order to be called a "town" varies considerably in different parts of the world, so that, for example, many American "small towns" seem to British people to be no more than villages, while...

 of Santa Rosalía

Santa Rosalía, Baja California Sur

Santa Rosalía is a city located on the Baja California peninsula, in the northern part of the Mexican state of Baja California Sur. It was named after Saint Rosalia, although the reason for the name is not quite clear since the Misión de Santa Rosalía is not located by the town, but rather in...

 on the Sea of Cortés near Isla Tortuga

Isla Tortuga

Isla Tortuga is an island in the Gulf of California, created relatively recently in geologic terms by the volcanism associated with the East Pacific Rise. It lies east-northeast of the city of Santa Rosalía, in Mulegé Municipality. It has a surface area of 11.374 km² .-References:*...

. The only town

Town

A town is a human settlement larger than a village but smaller than a city. The size a settlement must be in order to be called a "town" varies considerably in different parts of the world, so that, for example, many American "small towns" seem to British people to be no more than villages, while...

 on the island

Island

An island or isle is any piece of sub-continental land that is surrounded by water. Very small islands such as emergent land features on atolls can be called islets, cays or keys. An island in a river or lake may be called an eyot , or holm...

 is also named San Marcos. The island has a land area of 28.748 km² (11.100 sq mi), the 18th-largest island in Mexico. Its population as of the 2005 census was 425 inhabitants. It is part of the Mulegé Municipality.

Access

A 1,125 meter long private-use dirt airstrip

Isla San Marcos Airstrip

Isla San Marcos Airstrip is a private-use dirt airstrip located on the South coast of Isla San Marcos, Baja California Sur, Mexico, an island located in the Gulf of California, 10 miles South East of Santa Rosalía, Municipality of Mulegé. The airstrip is handled by "Compañía Occidental Mexicana...

 is located on the South coast of Isla San Marcos.

Attractions

Fishing

Fishing

Fishing is the activity of trying to catch wild fish. Fish are normally caught in the wild. Techniques for catching fish include hand gathering, spearing, netting, angling and trapping....

 is the main attraction, being roughly in the middle of the Sea of Cortés.